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不合格電線(xian)電纜的危害(hai)

電線電纜是用(yong)于傳(chuan)輸(shu)電力(li)、傳(chuan)輸(shu)信息和(he)實(shi)現(xian)(xian)電磁能量轉換的(de)一大類電工產(chan)品(pin)。在抽查過程中，發(fa)現(xian)(xian)了(le)大量的(de)不合格(ge)產(chan)品(pin)，這些(xie)劣質產(chan)品(pin)給電力(li)系統(tong)正常運行埋(mai)下諸多(duo)隱患。

1、標(biao)(biao)志(zhi)(zhi)不(bu)合(he)格的(de)電(dian)(dian)線電(dian)(dian)纜。標(biao)(biao)志(zhi)(zhi)是(shi)電(dian)(dian)線電(dian)(dian)纜使(shi)用識別產(chan)品基本信息(xi)的(de)主要途徑(jing)，根(gen)據標(biao)(biao)準規定標(biao)(biao)志(zhi)(zhi)的(de)主要內容是(shi)：產(chan)品型號、規格、標(biao)(biao)準號、廠名、產(chan)地等在一定的(de)標(biao)(biao)示(shi)間距內，當標(biao)(biao)志(zhi)(zhi)不(bu)合(he)格時，會造成施工人員識別錯誤(wu)，嚴重(zhong)時會引發電(dian)(dian)氣(qi)事(shi)故。

2、結構(gou)尺(chi)寸(cun)不(bu)(bu)合格的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)。結構(gou)尺(chi)寸(cun)的(de)主要(yao)問題是護套厚(hou)度(du)，絕(jue)(jue)緣厚(hou)度(du)，當電(dian)(dian)纜(lan)(lan)的(de)護套和絕(jue)(jue)緣厚(hou)度(du)不(bu)(bu)達(da)標(biao)時(shi)，致使(shi)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)耐(nai)電(dian)(dian)氣強度(du)會嚴(yan)重降低，導致電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)的(de)使(shi)用壽命縮短，嚴(yan)重時(shi)可導致電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)被(bei)擊穿，絕(jue)(jue)緣（護套）層(ceng)起不(bu)(bu)到正常(chang)保(bao)護作用，從而發生電(dian)(dian)氣短路和火災等現(xian)象。

3、護套式絕(jue)緣(yuan)老(lao)化前(qian)(qian)的(de)(de)抗(kang)(kang)張強度、伸(shen)長(chang)率(lv)(lv)合(he)格(ge)的(de)(de)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜。絕(jue)緣(yuan)護套老(lao)化前(qian)(qian)的(de)(de)抗(kang)(kang)張強度、伸(shen)長(chang)率(lv)(lv)不合(he)格(ge)直接大(da)大(da)縮短(duan)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)工作(zuo)用壽命(ming)，而且在(zai)施工或在(zai)長(chang)時間通電(dian)(dian)(dian)且溫度較高(gao)的(de)(de)環境中，極易出(chu)現絕(jue)緣(yuan)體斷裂，致(zhi)使(shi)帶電(dian)(dian)(dian)導體裸(luo)露，發生(sheng)能觸電(dian)(dian)(dian)式短(duan)路危險。其不合(he)格(ge)的(de)(de)主要原因是使(shi)用了再生(sheng)料生(sheng)產，以降低產品成本，二是不具(ju)備生(sheng)產資格(ge)小型(xing)企業。

4、導(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)不(bu)合(he)格的(de)電(dian)(dian)(dian)線(xian)。導(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)主要(yao)是考核電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)導(dao)(dao)體(ti)材料以及截(jie)面是否符合(he)的(de)重(zhong)(zhong)要(yao)指標(biao)。當(dang)導(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)超標(biao)時(shi)，就(jiu)增大了(le)電(dian)(dian)(dian)流在(zai)線(xian)路(lu)上通過時(shi)的(de)損(sun)耗(hao)，加劇了(le)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)發(fa)(fa)熱。導(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)不(bu)合(he)格的(de)原因，主要(yao)進企(qi)業為了(le)降低成本，將(jiang)占原材料成本80%的(de)銅(tong)材縮(suo)水，要(yao)么降低導(dao)(dao)體(ti)的(de)截(jie)面積，要(yao)么使用含雜質過高(gao)的(de)再(zai)生銅(tong)，這樣致(zhi)使電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)導(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)嚴重(zhong)(zhong)超標(biao)，在(zai)使用過程中除易引發(fa)(fa)火(huo)災，還會(hui)加速包覆(fu)在(zai)電(dian)(dian)(dian)線(xian)外的(de)絕緣層(ceng)的(de)老化(hua)。

在購買電線電纜的過程(cheng)中(zhong)，消(xiao)費者應(ying)注(zhu)意以下幾個事

第一、要觀察電線的(de)(de)外觀。合(he)格產品的(de)(de)絕(jue)緣（護(hu)套）層(ceng)柔軟、有韌性(xing)和伸縮性(xing)、表面層(ceng)緊密、光滑、無粗糙(cao)感。如果包裹電線的(de)(de)塑(su)料很容(rong)易被剝去，則(ze)存在塑(su)料強度不夠的(de)(de)問題。

第(di)二、要看電(dian)線的截面(mian)。合格產(chan)品的銅芯或鋁芯表(biao)面(mian)應該具有金屬光澤，表(biao)面(mian)發黑的銅或表(biao)面(mian)發白的鋁說(shuo)明已(yi)被氧化。

第三、在購買(mai)電線時應(ying)注意(yi)查看質(zhi)量合格證書(shu)。如果電線的質(zhi)量合格，那么其(qi)電線質(zhi)量應(ying)該也受過檢驗(yan)，不會有太大的問題。

沈陽凱(kai)鵬(peng)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)制造(zao)有(you)限公(gong)司隸(li)屬凱(kai)鵬(peng)集(ji)團下屬子(zi)公(gong)司，專門從(cong)事(shi)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)研發(fa)、生(sheng)產制造(zao)，是全國頗具(ju)實力的沈陽電(dian)(dian)纜(lan)(lan)廠家，主營(ying)產品：電(dian)(dian)力電(dian)(dian)纜(lan)(lan)、控制電(dian)(dian)纜(lan)(lan)、橡(xiang)套電(dian)(dian)纜(lan)(lan)、電(dian)(dian)氣裝備用(yong)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)、電(dian)(dian)子(zi)計(ji)算機電(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)纜(lan)(lan)等(deng)，以及(ji)(ji)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)代加(jia)工。小(xiao)編每天會在公(gong)司官網發(fa)布電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)價(jia)格表，及(ji)(ji)時(shi)更(geng)新銅價(jia)以及(ji)(ji)電(dian)(dian)纜(lan)(lan)廠報價(jia)信息。更(geng)多有(you)關電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)信息可點擊公(gong)司官網szbowen.cn